Question

if x=2017.2018.2021.2022+4, find the value of √x-2020² without using a calculator

Answer 1

x=2017.2018.2021.2022+4

\begin{gathered}3,13,27/2\\S1=3,\\\\S2=13\\S=S2-S1\\=13-3\\\\=10\end{gathered}

3,13,27/2

S1=3,

S2=13

S=S2−S1

=13−3

=10

hence, the answer is 10.